// console.log(spanner.next(70)); // 输出2（正确）
Terminal applications have a “cursor” that they can move around, just like a text editor. You can tell that cursor “go to line 3, delete everything, then print out this new text” by using VT100 sequences. And you can use it to replace existing characters with new ones, without re-emitting a whole line.
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Ecovacs Deebot X9 Pro Omni
of cash around with them, but they did want to be able to get cash after hours.